You may find a solution from my example demonstrating a simple geometric controller here
Alternatively, you can solve this problem mathematically, using an exponent starting from 1, i.e 1, 2, 4, 8, 16, 32, 64 etc. Total the sequence, then divide 1 by the result to create a multiplier. Multiply the sequence using this number, then create points using Curve.PointAtParameter
Here’s an example graph taking the ‘mathematical’ approach (using the geometric controller is simpler…):
